[PATCH 5/7] ddraw: COM cleanup for the IDirectDraw3 iface.

Michael Stefaniuc mstefani at redhat.de
Tue Jan 18 18:39:19 CST 2011


---
 dlls/ddraw/ddraw.c         |  140 +++++++++++++++++++++++++++----------------
 dlls/ddraw/ddraw_private.h |    2 +-
 dlls/ddraw/main.c          |    4 +-
 3 files changed, 91 insertions(+), 55 deletions(-)

diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index bb34f3a..9d1a1b7 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -56,9 +56,9 @@ static inline IDirectDrawImpl *impl_from_IDirectDraw2(IDirectDraw2 *iface)
     return CONTAINING_RECORD(iface, IDirectDrawImpl, IDirectDraw2_iface);
 }
 
-static inline IDirectDrawImpl *ddraw_from_ddraw3(IDirectDraw3 *iface)
+static inline IDirectDrawImpl *impl_from_IDirectDraw3(IDirectDraw3 *iface)
 {
-    return (IDirectDrawImpl *)((char*)iface - FIELD_OFFSET(IDirectDrawImpl, IDirectDraw3_vtbl));
+    return CONTAINING_RECORD(iface, IDirectDrawImpl, IDirectDraw3_iface);
 }
 
 static inline IDirectDrawImpl *ddraw_from_ddraw4(IDirectDraw4 *iface)
@@ -243,9 +243,11 @@ static HRESULT WINAPI ddraw4_QueryInterface(IDirectDraw4 *iface, REFIID riid, vo
 
 static HRESULT WINAPI ddraw3_QueryInterface(IDirectDraw3 *iface, REFIID riid, void **object)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 
-    return ddraw7_QueryInterface((IDirectDraw7 *)ddraw_from_ddraw3(iface), riid, object);
+    return ddraw7_QueryInterface((IDirectDraw7 *)This, riid, object);
 }
 
 static HRESULT WINAPI ddraw2_QueryInterface(IDirectDraw2 *iface, REFIID riid, void **object)
@@ -346,12 +348,12 @@ static ULONG WINAPI ddraw4_AddRef(IDirectDraw4 *iface)
 
 static ULONG WINAPI ddraw3_AddRef(IDirectDraw3 *iface)
 {
-    IDirectDrawImpl *ddraw = ddraw_from_ddraw3(iface);
-    ULONG ref = InterlockedIncrement(&ddraw->ref3);
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+    ULONG ref = InterlockedIncrement(&This->ref3);
 
-    TRACE("%p increasing refcount to %u.\n", ddraw, ref);
+    TRACE("%p increasing refcount to %u.\n", This, ref);
 
-    if (ref == 1) InterlockedIncrement(&ddraw->numIfaces);
+    if (ref == 1) InterlockedIncrement(&This->numIfaces);
 
     return ref;
 }
@@ -486,13 +488,13 @@ static ULONG WINAPI ddraw4_Release(IDirectDraw4 *iface)
 
 static ULONG WINAPI ddraw3_Release(IDirectDraw3 *iface)
 {
-    IDirectDrawImpl *ddraw = ddraw_from_ddraw3(iface);
-    ULONG ref = InterlockedDecrement(&ddraw->ref3);
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+    ULONG ref = InterlockedDecrement(&This->ref3);
 
-    TRACE("%p decreasing refcount to %u.\n", ddraw, ref);
+    TRACE("%p decreasing refcount to %u.\n", This, ref);
 
-    if (!ref && !InterlockedDecrement(&ddraw->numIfaces))
-        ddraw_destroy(ddraw);
+    if (!ref && !InterlockedDecrement(&This->numIfaces))
+        ddraw_destroy(This);
 
     return ref;
 }
@@ -779,9 +781,11 @@ static HRESULT WINAPI ddraw4_SetCooperativeLevel(IDirectDraw4 *iface, HWND windo
 
 static HRESULT WINAPI ddraw3_SetCooperativeLevel(IDirectDraw3 *iface, HWND window, DWORD flags)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, window %p, flags %#x.\n", iface, window, flags);
 
-    return ddraw7_SetCooperativeLevel((IDirectDraw7 *)ddraw_from_ddraw3(iface), window, flags);
+    return ddraw7_SetCooperativeLevel((IDirectDraw7 *)This, window, flags);
 }
 
 static HRESULT WINAPI ddraw2_SetCooperativeLevel(IDirectDraw2 *iface, HWND window, DWORD flags)
@@ -920,14 +924,15 @@ static HRESULT WINAPI ddraw4_SetDisplayMode(IDirectDraw4 *iface,
             width, height, bpp, refresh_rate, flags);
 }
 
-static HRESULT WINAPI ddraw3_SetDisplayMode(IDirectDraw3 *iface,
-        DWORD width, DWORD height, DWORD bpp, DWORD refresh_rate, DWORD flags)
+static HRESULT WINAPI ddraw3_SetDisplayMode(IDirectDraw3 *iface, DWORD width, DWORD height,
+        DWORD bpp, DWORD refresh_rate, DWORD flags)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, width %u, height %u, bpp %u, refresh_rate %u, flags %#x.\n",
             iface, width, height, bpp, refresh_rate, flags);
 
-    return ddraw7_SetDisplayMode((IDirectDraw7 *)ddraw_from_ddraw3(iface),
-            width, height, bpp, refresh_rate, flags);
+    return ddraw7_SetDisplayMode((IDirectDraw7 *)This, width, height, bpp, refresh_rate, flags);
 }
 
 static HRESULT WINAPI ddraw2_SetDisplayMode(IDirectDraw2 *iface,
@@ -989,9 +994,11 @@ static HRESULT WINAPI ddraw4_RestoreDisplayMode(IDirectDraw4 *iface)
 
 static HRESULT WINAPI ddraw3_RestoreDisplayMode(IDirectDraw3 *iface)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p.\n", iface);
 
-    return ddraw7_RestoreDisplayMode((IDirectDraw7 *)ddraw_from_ddraw3(iface));
+    return ddraw7_RestoreDisplayMode((IDirectDraw7 *)This);
 }
 
 static HRESULT WINAPI ddraw2_RestoreDisplayMode(IDirectDraw2 *iface)
@@ -1122,9 +1129,11 @@ static HRESULT WINAPI ddraw4_GetCaps(IDirectDraw4 *iface, DDCAPS *driver_caps, D
 
 static HRESULT WINAPI ddraw3_GetCaps(IDirectDraw3 *iface, DDCAPS *driver_caps, DDCAPS *hel_caps)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, driver_caps %p, hel_caps %p.\n", iface, driver_caps, hel_caps);
 
-    return ddraw7_GetCaps((IDirectDraw7 *)ddraw_from_ddraw3(iface), driver_caps, hel_caps);
+    return ddraw7_GetCaps((IDirectDraw7 *)This, driver_caps, hel_caps);
 }
 
 static HRESULT WINAPI ddraw2_GetCaps(IDirectDraw2 *iface, DDCAPS *driver_caps, DDCAPS *hel_caps)
@@ -1170,9 +1179,11 @@ static HRESULT WINAPI ddraw4_Compact(IDirectDraw4 *iface)
 
 static HRESULT WINAPI ddraw3_Compact(IDirectDraw3 *iface)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p.\n", iface);
 
-    return ddraw7_Compact((IDirectDraw7 *)ddraw_from_ddraw3(iface));
+    return ddraw7_Compact((IDirectDraw7 *)This);
 }
 
 static HRESULT WINAPI ddraw2_Compact(IDirectDraw2 *iface)
@@ -1269,9 +1280,11 @@ static HRESULT WINAPI ddraw4_GetDisplayMode(IDirectDraw4 *iface, DDSURFACEDESC2
 
 static HRESULT WINAPI ddraw3_GetDisplayMode(IDirectDraw3 *iface, DDSURFACEDESC *surface_desc)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, surface_desc %p.\n", iface, surface_desc);
 
-    return ddraw7_GetDisplayMode((IDirectDraw7 *)ddraw_from_ddraw3(iface), (DDSURFACEDESC2 *)surface_desc);
+    return ddraw7_GetDisplayMode((IDirectDraw7 *)This, (DDSURFACEDESC2 *)surface_desc);
 }
 
 static HRESULT WINAPI ddraw2_GetDisplayMode(IDirectDraw2 *iface, DDSURFACEDESC *surface_desc)
@@ -1366,9 +1379,11 @@ static HRESULT WINAPI ddraw4_GetFourCCCodes(IDirectDraw4 *iface, DWORD *codes_co
 
 static HRESULT WINAPI ddraw3_GetFourCCCodes(IDirectDraw3 *iface, DWORD *codes_count, DWORD *codes)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, codes_count %p, codes %p.\n", iface, codes_count, codes);
 
-    return ddraw7_GetFourCCCodes((IDirectDraw7 *)ddraw_from_ddraw3(iface), codes_count, codes);
+    return ddraw7_GetFourCCCodes((IDirectDraw7 *)This, codes_count, codes);
 }
 
 static HRESULT WINAPI ddraw2_GetFourCCCodes(IDirectDraw2 *iface, DWORD *codes_count, DWORD *codes)
@@ -1423,9 +1438,11 @@ static HRESULT WINAPI ddraw4_GetMonitorFrequency(IDirectDraw4 *iface, DWORD *fre
 
 static HRESULT WINAPI ddraw3_GetMonitorFrequency(IDirectDraw3 *iface, DWORD *frequency)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, frequency %p.\n", iface, frequency);
 
-    return ddraw7_GetMonitorFrequency((IDirectDraw7 *)ddraw_from_ddraw3(iface), frequency);
+    return ddraw7_GetMonitorFrequency((IDirectDraw7 *)This, frequency);
 }
 
 static HRESULT WINAPI ddraw2_GetMonitorFrequency(IDirectDraw2 *iface, DWORD *frequency)
@@ -1489,9 +1506,11 @@ static HRESULT WINAPI ddraw4_GetVerticalBlankStatus(IDirectDraw4 *iface, BOOL *s
 
 static HRESULT WINAPI ddraw3_GetVerticalBlankStatus(IDirectDraw3 *iface, BOOL *status)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, status %p.\n", iface, status);
 
-    return ddraw7_GetVerticalBlankStatus((IDirectDraw7 *)ddraw_from_ddraw3(iface), status);
+    return ddraw7_GetVerticalBlankStatus((IDirectDraw7 *)This, status);
 }
 
 static HRESULT WINAPI ddraw2_GetVerticalBlankStatus(IDirectDraw2 *iface, BOOL *status)
@@ -1566,15 +1585,16 @@ static HRESULT WINAPI ddraw4_GetAvailableVidMem(IDirectDraw4 *iface,
     return ddraw7_GetAvailableVidMem((IDirectDraw7 *)ddraw_from_ddraw4(iface), caps, total, free);
 }
 
-static HRESULT WINAPI ddraw3_GetAvailableVidMem(IDirectDraw3 *iface,
-        DDSCAPS *caps, DWORD *total, DWORD *free)
+static HRESULT WINAPI ddraw3_GetAvailableVidMem(IDirectDraw3 *iface, DDSCAPS *caps, DWORD *total,
+        DWORD *free)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
     DDSCAPS2 caps2;
 
     TRACE("iface %p, caps %p, total %p, free %p.\n", iface, caps, total, free);
 
     DDRAW_Convert_DDSCAPS_1_To_2(caps, &caps2);
-    return ddraw7_GetAvailableVidMem((IDirectDraw7 *)ddraw_from_ddraw3(iface), &caps2, total, free);
+    return ddraw7_GetAvailableVidMem((IDirectDraw7 *)This, &caps2, total, free);
 }
 
 static HRESULT WINAPI ddraw2_GetAvailableVidMem(IDirectDraw2 *iface,
@@ -1628,9 +1648,11 @@ static HRESULT WINAPI ddraw4_Initialize(IDirectDraw4 *iface, GUID *guid)
 
 static HRESULT WINAPI ddraw3_Initialize(IDirectDraw3 *iface, GUID *guid)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, guid %s.\n", iface, debugstr_guid(guid));
 
-    return ddraw7_Initialize((IDirectDraw7 *)ddraw_from_ddraw3(iface), guid);
+    return ddraw7_Initialize((IDirectDraw7 *)This, guid);
 }
 
 static HRESULT WINAPI ddraw2_Initialize(IDirectDraw2 *iface, GUID *guid)
@@ -1687,9 +1709,11 @@ static HRESULT WINAPI ddraw4_FlipToGDISurface(IDirectDraw4 *iface)
 
 static HRESULT WINAPI ddraw3_FlipToGDISurface(IDirectDraw3 *iface)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p.\n", iface);
 
-    return ddraw7_FlipToGDISurface((IDirectDraw7 *)ddraw_from_ddraw3(iface));
+    return ddraw7_FlipToGDISurface((IDirectDraw7 *)This);
 }
 
 static HRESULT WINAPI ddraw2_FlipToGDISurface(IDirectDraw2 *iface)
@@ -1756,9 +1780,11 @@ static HRESULT WINAPI ddraw4_WaitForVerticalBlank(IDirectDraw4 *iface, DWORD fla
 
 static HRESULT WINAPI ddraw3_WaitForVerticalBlank(IDirectDraw3 *iface, DWORD flags, HANDLE event)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, flags %#x, event %p.\n", iface, flags, event);
 
-    return ddraw7_WaitForVerticalBlank((IDirectDraw7 *)ddraw_from_ddraw3(iface), flags, event);
+    return ddraw7_WaitForVerticalBlank((IDirectDraw7 *)This, flags, event);
 }
 
 static HRESULT WINAPI ddraw2_WaitForVerticalBlank(IDirectDraw2 *iface, DWORD flags, HANDLE event)
@@ -1831,9 +1857,11 @@ static HRESULT WINAPI ddraw4_GetScanLine(IDirectDraw4 *iface, DWORD *line)
 
 static HRESULT WINAPI ddraw3_GetScanLine(IDirectDraw3 *iface, DWORD *line)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, line %p.\n", iface, line);
 
-    return ddraw7_GetScanLine((IDirectDraw7 *)ddraw_from_ddraw3(iface), line);
+    return ddraw7_GetScanLine((IDirectDraw7 *)This, line);
 }
 
 static HRESULT WINAPI ddraw2_GetScanLine(IDirectDraw2 *iface, DWORD *line)
@@ -1949,12 +1977,13 @@ static HRESULT WINAPI ddraw4_GetGDISurface(IDirectDraw4 *iface, IDirectDrawSurfa
 
 static HRESULT WINAPI ddraw3_GetGDISurface(IDirectDraw3 *iface, IDirectDrawSurface **surface)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
     IDirectDrawSurface7 *surface7;
     HRESULT hr;
 
     TRACE("iface %p, surface %p.\n", iface, surface);
 
-    hr = ddraw7_GetGDISurface((IDirectDraw7 *)ddraw_from_ddraw3(iface), &surface7);
+    hr = ddraw7_GetGDISurface((IDirectDraw7 *)This, &surface7);
     *surface = surface7 ? (IDirectDrawSurface *)&((IDirectDrawSurfaceImpl *)surface7)->IDirectDrawSurface3_vtbl : NULL;
 
     return hr;
@@ -2186,6 +2215,7 @@ static HRESULT WINAPI ddraw4_EnumDisplayModes(IDirectDraw4 *iface, DWORD flags,
 static HRESULT WINAPI ddraw3_EnumDisplayModes(IDirectDraw3 *iface, DWORD flags,
         DDSURFACEDESC *surface_desc, void *context, LPDDENUMMODESCALLBACK callback)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
     struct displaymodescallback_context cbcontext;
 
     TRACE("iface %p, flags %#x, surface_desc %p, context %p, callback %p.\n",
@@ -2194,7 +2224,7 @@ static HRESULT WINAPI ddraw3_EnumDisplayModes(IDirectDraw3 *iface, DWORD flags,
     cbcontext.func = callback;
     cbcontext.context = context;
 
-    return ddraw7_EnumDisplayModes((IDirectDraw7 *)ddraw_from_ddraw3(iface), flags,
+    return ddraw7_EnumDisplayModes((IDirectDraw7 *)This, flags,
             (DDSURFACEDESC2 *)surface_desc, &cbcontext, EnumDisplayModesCallbackThunk);
 }
 
@@ -2356,12 +2386,14 @@ static HRESULT WINAPI ddraw4_GetSurfaceFromDC(IDirectDraw4 *iface, HDC dc, IDire
     return hr;
 }
 
-static HRESULT WINAPI ddraw3_GetSurfaceFromDC(IDirectDraw3 *iface, HDC dc, IDirectDrawSurface **surface)
+static HRESULT WINAPI ddraw3_GetSurfaceFromDC(IDirectDraw3 *iface, HDC dc,
+        IDirectDrawSurface **surface)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, dc %p, surface %p.\n", iface, dc, surface);
 
-    return ddraw7_GetSurfaceFromDC((IDirectDraw7 *)ddraw_from_ddraw3(iface),
-            dc, (IDirectDrawSurface7 **)surface);
+    return ddraw7_GetSurfaceFromDC((IDirectDraw7 *)This, dc, (IDirectDrawSurface7 **)surface);
 }
 
 /*****************************************************************************
@@ -3469,10 +3501,10 @@ static HRESULT WINAPI ddraw4_CreateSurface(IDirectDraw4 *iface,
     return hr;
 }
 
-static HRESULT WINAPI ddraw3_CreateSurface(IDirectDraw3 *iface,
-        DDSURFACEDESC *surface_desc, IDirectDrawSurface **surface, IUnknown *outer_unknown)
+static HRESULT WINAPI ddraw3_CreateSurface(IDirectDraw3 *iface, DDSURFACEDESC *surface_desc,
+        IDirectDrawSurface **surface, IUnknown *outer_unknown)
 {
-    IDirectDrawImpl *ddraw = ddraw_from_ddraw3(iface);
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
     IDirectDrawSurface7 *surface7;
     IDirectDrawSurfaceImpl *impl;
     HRESULT hr;
@@ -3498,7 +3530,7 @@ static HRESULT WINAPI ddraw3_CreateSurface(IDirectDraw3 *iface,
         return DDERR_INVALIDCAPS;
     }
 
-    hr = CreateSurface(ddraw, (DDSURFACEDESC2 *)surface_desc, &surface7, outer_unknown);
+    hr = CreateSurface(This, (DDSURFACEDESC2 *)surface_desc, &surface7, outer_unknown);
     if (FAILED(hr))
     {
         *surface = NULL;
@@ -3508,7 +3540,7 @@ static HRESULT WINAPI ddraw3_CreateSurface(IDirectDraw3 *iface,
     impl = (IDirectDrawSurfaceImpl *)surface7;
     *surface = (IDirectDrawSurface *)&impl->IDirectDrawSurface3_vtbl;
     ddraw_set_surface_version(impl, 3);
-    IDirectDraw7_Release((IDirectDraw7 *)ddraw);
+    IDirectDraw7_Release((IDirectDraw7 *)This);
     IDirectDraw3_AddRef(iface);
     impl->ifaceToRelease = (IUnknown *)iface;
 
@@ -3803,6 +3835,7 @@ static HRESULT WINAPI ddraw4_EnumSurfaces(IDirectDraw4 *iface, DWORD flags,
 static HRESULT WINAPI ddraw3_EnumSurfaces(IDirectDraw3 *iface, DWORD flags,
         DDSURFACEDESC *surface_desc, void *context, LPDDENUMSURFACESCALLBACK callback)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
     struct surfacescallback_context cbcontext;
 
     TRACE("iface %p, flags %#x, surface_desc %p, context %p, callback %p.\n",
@@ -3811,7 +3844,7 @@ static HRESULT WINAPI ddraw3_EnumSurfaces(IDirectDraw3 *iface, DWORD flags,
     cbcontext.func = callback;
     cbcontext.context = context;
 
-    return ddraw7_EnumSurfaces((IDirectDraw7 *)ddraw_from_ddraw3(iface), flags,
+    return ddraw7_EnumSurfaces((IDirectDraw7 *)This, flags,
             (DDSURFACEDESC2 *)surface_desc, &cbcontext, EnumSurfacesCallbackThunk);
 }
 
@@ -3933,13 +3966,15 @@ static HRESULT WINAPI ddraw4_CreateClipper(IDirectDraw4 *iface,
     return ddraw7_CreateClipper((IDirectDraw7 *)ddraw_from_ddraw4(iface), flags, clipper, outer_unknown);
 }
 
-static HRESULT WINAPI ddraw3_CreateClipper(IDirectDraw3 *iface,
-        DWORD flags, IDirectDrawClipper **clipper, IUnknown *outer_unknown)
+static HRESULT WINAPI ddraw3_CreateClipper(IDirectDraw3 *iface, DWORD flags,
+        IDirectDrawClipper **clipper, IUnknown *outer_unknown)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
+
     TRACE("iface %p, flags %#x, clipper %p, outer_unknown %p.\n",
             iface, flags, clipper, outer_unknown);
 
-    return ddraw7_CreateClipper((IDirectDraw7 *)ddraw_from_ddraw3(iface), flags, clipper, outer_unknown);
+    return ddraw7_CreateClipper((IDirectDraw7 *)This, flags, clipper, outer_unknown);
 }
 
 static HRESULT WINAPI ddraw2_CreateClipper(IDirectDraw2 *iface,
@@ -4053,17 +4088,17 @@ static HRESULT WINAPI ddraw4_CreatePalette(IDirectDraw4 *iface, DWORD flags,
 static HRESULT WINAPI ddraw3_CreatePalette(IDirectDraw3 *iface, DWORD flags,
         PALETTEENTRY *entries, IDirectDrawPalette **palette, IUnknown *outer_unknown)
 {
-    IDirectDrawImpl *ddraw = ddraw_from_ddraw3(iface);
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
     HRESULT hr;
 
     TRACE("iface %p, flags %#x, entries %p, palette %p, outer_unknown %p.\n",
             iface, flags, entries, palette, outer_unknown);
 
-    hr = ddraw7_CreatePalette((IDirectDraw7 *)ddraw, flags, entries, palette, outer_unknown);
+    hr = ddraw7_CreatePalette((IDirectDraw7 *)This, flags, entries, palette, outer_unknown);
     if (SUCCEEDED(hr) && *palette)
     {
         IDirectDrawPaletteImpl *impl = (IDirectDrawPaletteImpl *)*palette;
-        IDirectDraw7_Release((IDirectDraw7 *)ddraw);
+        IDirectDraw7_Release((IDirectDraw7 *)This);
         IDirectDraw4_AddRef(iface);
         impl->ifaceToRelease = (IUnknown *)iface;
     }
@@ -4151,15 +4186,16 @@ static HRESULT WINAPI ddraw4_DuplicateSurface(IDirectDraw4 *iface,
             (IDirectDrawSurface7 *)src, (IDirectDrawSurface7 **)dst);
 }
 
-static HRESULT WINAPI ddraw3_DuplicateSurface(IDirectDraw3 *iface,
-        IDirectDrawSurface *src, IDirectDrawSurface **dst)
+static HRESULT WINAPI ddraw3_DuplicateSurface(IDirectDraw3 *iface, IDirectDrawSurface *src,
+        IDirectDrawSurface **dst)
 {
+    IDirectDrawImpl *This = impl_from_IDirectDraw3(iface);
     IDirectDrawSurface7 *src7, *dst7;
     HRESULT hr;
 
     TRACE("iface %p, src %p, dst %p.\n", iface, src, dst);
     src7 = (IDirectDrawSurface7 *)surface_from_surface3((IDirectDrawSurface3 *)src);
-    hr = ddraw7_DuplicateSurface((IDirectDraw7 *)ddraw_from_ddraw3(iface), src7, &dst7);
+    hr = ddraw7_DuplicateSurface((IDirectDraw7 *)This, src7, &dst7);
     if (FAILED(hr))
         return hr;
     *dst = (IDirectDrawSurface *)&((IDirectDrawSurfaceImpl *)dst7)->IDirectDrawSurface3_vtbl;
@@ -5903,7 +5939,7 @@ HRESULT ddraw_init(IDirectDrawImpl *ddraw, WINED3DDEVTYPE device_type)
     ddraw->lpVtbl = &ddraw7_vtbl;
     ddraw->IDirectDraw_iface.lpVtbl = &ddraw1_vtbl;
     ddraw->IDirectDraw2_iface.lpVtbl = &ddraw2_vtbl;
-    ddraw->IDirectDraw3_vtbl = &ddraw3_vtbl;
+    ddraw->IDirectDraw3_iface.lpVtbl = &ddraw3_vtbl;
     ddraw->IDirectDraw4_vtbl = &ddraw4_vtbl;
     ddraw->IDirect3D_iface.lpVtbl = &d3d1_vtbl;
     ddraw->IDirect3D2_iface.lpVtbl = &d3d2_vtbl;
diff --git a/dlls/ddraw/ddraw_private.h b/dlls/ddraw/ddraw_private.h
index ef94448..01b95bf 100644
--- a/dlls/ddraw/ddraw_private.h
+++ b/dlls/ddraw/ddraw_private.h
@@ -98,7 +98,7 @@ struct IDirectDrawImpl
     /* IUnknown fields */
     const IDirectDraw7Vtbl *lpVtbl;
     const IDirectDraw4Vtbl *IDirectDraw4_vtbl;
-    const IDirectDraw3Vtbl *IDirectDraw3_vtbl;
+    IDirectDraw3 IDirectDraw3_iface;
     IDirectDraw2 IDirectDraw2_iface;
     IDirectDraw IDirectDraw_iface;
     IDirect3D7 IDirect3D7_iface;
diff --git a/dlls/ddraw/main.c b/dlls/ddraw/main.c
index d095d8d..a2fffa4 100644
--- a/dlls/ddraw/main.c
+++ b/dlls/ddraw/main.c
@@ -939,7 +939,7 @@ DllMain(HINSTANCE hInstDLL,
                 /* Add references to each interface to avoid freeing them unexpectedly */
                 IDirectDraw_AddRef(&ddraw->IDirectDraw_iface);
                 IDirectDraw2_AddRef(&ddraw->IDirectDraw2_iface);
-                IDirectDraw3_AddRef((IDirectDraw3 *)&ddraw->IDirectDraw3_vtbl);
+                IDirectDraw3_AddRef(&ddraw->IDirectDraw3_iface);
                 IDirectDraw4_AddRef((IDirectDraw4 *)&ddraw->IDirectDraw4_vtbl);
                 IDirectDraw7_AddRef((IDirectDraw7 *)ddraw);
 
@@ -975,7 +975,7 @@ DllMain(HINSTANCE hInstDLL,
                     */
                 while(IDirectDraw_Release(&ddraw->IDirectDraw_iface));
                 while(IDirectDraw2_Release(&ddraw->IDirectDraw2_iface));
-                while(IDirectDraw3_Release((IDirectDraw3 *)&ddraw->IDirectDraw3_vtbl));
+                while(IDirectDraw3_Release(&ddraw->IDirectDraw3_iface));
                 while(IDirectDraw4_Release((IDirectDraw4 *)&ddraw->IDirectDraw4_vtbl));
                 while(IDirectDraw7_Release((IDirectDraw7 *)ddraw));
             }
-- 
1.7.3.4



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